Business Sector

Test Types

Specimen

During the implantation process, bone cements are used to fill the space between the implant and the bone, and their long-term mechanical stability is essential for success of the implant. By undertaking static and cyclic loading, the mechanical performance of these bone cements can be established.

ISO 16402 ‘Implants for surgery – Acrylic resin cement - Flexural fatigue testing of acrylic resin cements used in orthopaedics’ provides a guideline for flexural testing of these cements in a laboratory situation. It consists of a method for both quasi-static bend testing and flexural fatigue.

A miniature 4-point bend fixture is used within into a fluid bath filled with Ringer’s solution and maintained at 37° C. After a quasi-static bend test is performed, fatigue testing is carried out to generate a Stress level/Number of cycles (S/N) curve.

5900 Universal Testing Systems are engineered for precision, built for durability, and offer the flexibility for changing requirements. They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator. A wide range of models are available for testing capacities from < 100N up to 600kN.

ElectroPuls instruments are state-of-the-art electrodynamic test systems for dynamic and static tests on materials & components. Powered entirely from a single-phase mains supply, they feature the latest in testing technology and a host of other user-oriented features.

Instron® has considerable experience
of mechanical testing in orthopaedics:
from basic static testing of raw
materials, to impact loading of joint
components, through to complete
simulation for evaluating the fatigue
and wear properties in vivo. Through
every phase of implant development,
our solutions meet a vast array of
demands found within the orthopaedics
field. These include hip and knee
implants, spinal devices, and medical
devices for trauma and osteosynthesis.

The ElectroPulsTM E1000 is a state-of-the-art, all-electric test instrument designed for dynamic
and static testing on a wide range of materials and components. It includes Instron® advanced
digital control electronics, DynacellTM load cell, Console software, and the very latest in testing
technology – hassle-free tuning based on specimen stiffness, electrically operated crosshead
lifts, a T-slot table for flexible test set ups, and a host of other user-orientated features. Powered
from a single-phase supply it requires no additional utilities for basic machine operation (for
example, pneumatic air, hydraulics, or water).

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